isSometimesUsedAsVariantOf

Given a predicate that represents a relationship or action between entities, generate a one-sentence description explaining its meaning.  
# Instructions
Focus on describing the relationship, not the entities themselves. 
# Response Format
Begin the description with \' Indicates...\'

Predicate: isSometimesUsedAsVariantOf

Indicates that one entity is occasionally employed as an alternative or substitute form of another entity, but not as its primary or standard version.